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# The image of an object form at the distance of distinct vision from the lens of a simple microscope of focal length 2.5cm. It magnifying power is ____.

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#### Given v = +25cm f = 2.5cm To find :- magnification 1 mSolution :- from lens formula 1v−1u=1f −1u+125=1025 −1u=925⇒u=−259magnification m=vu=2599×−25 m=−9

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